At \(\mbox{\textit {Fr}}=2 \approx (L/D)/\pi \) , the wake of a 6:1 prolate spheroid is in a resonant state. The half wavelength of the lee waves is equal to the body length and, as a result, the flow separation and the wake are strongly modulated by the waves. Whereas previous works had described this regime in laminar-separation configurations of a sphere [1]}, [2]} and a 4:1 spheroid [3]}, the present results show that the influence of the waves persists even at high Reynolds numbers and with the separation of a turbulent boundary layer. At \(\mbox{\textit {Fr}}=2\) , the flow and the turbulence in the spheroid wake evolve very differently from the disk wake. Both the lack of strong shedding in the near wake [4]} and the strong modulation of the mean flow by the lee waves, lead to a wake with vertical and horizontal profiles of mean velocity that depart strongly from Gaussian. These features are not observed in the disk wake at \(\mbox{\textit {Fr}}=2\) , which shows a vertically-squeezed Gaussian topology and a weak imprint of lee waves on the wake dimensions.
